oaisim.c 42.5 KB
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#include <string.h>
#include <math.h>
#include <unistd.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <cblas.h>
#include <execinfo.h>

#include "SIMULATION/RF/defs.h"
#include "PHY/types.h"
#include "PHY/defs.h"
#include "PHY/LTE_TRANSPORT/proto.h"
#include "PHY/vars.h"
#include "MAC_INTERFACE/vars.h"

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#include "SIMULATION/ETH_TRANSPORT/proto.h"

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//#ifdef OPENAIR2
#include "LAYER2/MAC/defs.h"
#include "LAYER2/MAC/vars.h"
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#include "pdcp.h"
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#ifndef CELLULAR
#include "RRC/LITE/vars.h"
#endif
#include "PHY_INTERFACE/vars.h"
//#endif
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#include "RRC/NAS/nas_config.h"
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#include "ARCH/CBMIMO1/DEVICE_DRIVER/vars.h"

#ifdef IFFT_FPGA
//#include "PHY/LTE_REFSIG/mod_table.h"
#endif //IFFT_FPGA
#include "SCHED/defs.h"
#include "SCHED/vars.h"

#ifdef XFORMS
#include "PHY/TOOLS/lte_phy_scope.h"
#endif

#ifdef SMBV
#include "PHY/TOOLS/smbv.h"
char smbv_fname[] = "smbv_config_file.smbv";
unsigned short smbv_nframes = 4; // how many frames to configure 1,..,4
unsigned short config_frames[4] = {2,9,11,13};
// unsigned short config_frames[4] = {1};
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unsigned char smbv_frame_cnt = 0;
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u8 config_smbv = 0;
char smbv_ip[16];
#endif

#include "oaisim_functions.h"

#include "oaisim.h"
#include "oaisim_config.h"
#include "UTIL/OCG/OCG_extern.h"
#include "cor_SF_sim.h"
#include "UTIL/OMG/omg_constants.h"
#include "UTIL/FIFO/pad_list.h"

//#ifdef PROC
#include "../PROC/interface.h"
#include "../PROC/channel_sim_proc.h"
#include "../PROC/Tsync.h"
#include "../PROC/Process.h"
//#endif

#include "UTIL/LOG/vcd_signal_dumper.h"
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#include "UTIL/OTG/otg_kpi.h"

#if defined(ENABLE_ITTI)
# include "intertask_interface_init.h"
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# include "timer.h"
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# if defined(ENABLE_USE_MME)
#   include "s1ap_eNB.h"
#   include "sctp_eNB_task.h"
# endif
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#endif
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#define RF

//#define DEBUG_SIM

#define MCS_COUNT 24//added for PHY abstraction
#define N_TRIALS 1

/*
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 DCI0_5MHz_TDD0_t          UL_alloc_pdu;
 DCI1A_5MHz_TDD_1_6_t      CCCH_alloc_pdu;
 DCI2_5MHz_2A_L10PRB_TDD_t DLSCH_alloc_pdu1;
 DCI2_5MHz_2A_M10PRB_TDD_t DLSCH_alloc_pdu2;
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 */

#define UL_RB_ALLOC computeRIV(lte_frame_parms->N_RB_UL,0,24)
#define CCCH_RB_ALLOC computeRIV(lte_frame_parms->N_RB_UL,0,3)
#define RA_RB_ALLOC computeRIV(lte_frame_parms->N_RB_UL,0,3)
#define DLSCH_RB_ALLOC 0x1fff

#define DECOR_DIST 100
#define SF_VAR 10

//constant for OAISIM soft realtime calibration
#define SF_DEVIATION_OFFSET_NS 100000 //= 0.1ms : should be as a number of UE
#define SLEEP_STEP_US       100 //  = 0.01ms could be adaptive, should be as a number of UE
#define K 2                  // averaging coefficient 
#define TARGET_SF_TIME_NS 1000000       // 1ms = 1000000 ns
//#ifdef OPENAIR2
//u16 NODE_ID[1];
//u8 NB_INST = 2;
//#endif //OPENAIR2
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u32 frame = 0;
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//int eMBMS_active = 0;
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char stats_buffer[16384];
channel_desc_t *eNB2UE[NUMBER_OF_eNB_MAX][NUMBER_OF_UE_MAX];
channel_desc_t *UE2eNB[NUMBER_OF_UE_MAX][NUMBER_OF_eNB_MAX];
//Added for PHY abstraction
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node_desc_t *enb_data[NUMBER_OF_eNB_MAX];
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node_desc_t *ue_data[NUMBER_OF_UE_MAX];
// Added for PHY abstraction
extern Node_list ue_node_list;
extern Node_list enb_node_list;
extern int pdcp_period, omg_period;

extern double **s_re, **s_im, **r_re, **r_im, **r_re0, **r_im0;
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int map1, map2;
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extern double **ShaF;
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double snr_dB, sinr_dB, snr_direction; //,sinr_direction;
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extern double snr_step;
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extern u8 set_sinr; //,set_snr=0;
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extern u8 ue_connection_test;
extern u8 set_seed;
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u8 cooperation_flag; // for cooperative communication
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extern u8 target_dl_mcs;
extern u8 target_ul_mcs;
u8 rate_adaptation_flag;
extern u8 abstraction_flag, ethernet_flag;
extern u16 Nid_cell;
extern struct timespec time_spec;
extern unsigned long time_last, time_now;
extern int td, td_avg, sleep_time_us;
extern LTE_DL_FRAME_PARMS *frame_parms;
//double sinr_bler_map[MCS_COUNT][2][16];
//double sinr_bler_map_up[MCS_COUNT][2][16];
//extern double SINRpost_eff[301];
//extern int mcsPost; 
//extern int  nrbPost; 
//extern int frbPost;
//extern void kpi_gen();

#ifdef XFORMS
int otg_enabled;
#endif

// this should reflect the channel models in openair1/SIMULATION/TOOLS/defs.h
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mapping small_scale_names[] = {
  {"custom", custom},
  {"SCM_A", SCM_A},
  {"SCM_B", SCM_B},
  {"SCM_C", SCM_C},
  {"SCM_D", SCM_D},
  {"EPA", EPA},
  {"EVA", EVA},
  {"ETU", ETU},
  {"MBSFN", MBSFN},
  {"Rayleigh8", Rayleigh8},
  {"Rayleigh1", Rayleigh1},
  {"Rayleigh1_800", Rayleigh1_800},
  {"Rayleigh1_corr", Rayleigh1_corr},
  {"Rayleigh1_anticorr", Rayleigh1_anticorr},
  {"Rice8", Rice8},
  {"Rice1", Rice1},
  {"Rice1_corr", Rice1_corr},
  {"Rice1_anticorr", Rice1_anticorr},
  {"AWGN", AWGN},
  {NULL, -1}
};
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//static void *sigh(void *arg);
void terminate(void);

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void help(void) {
  printf (
      "Usage: oaisim -h -a -F -C tdd_config -V -R N_RB_DL -e -x transmission_mode -m target_dl_mcs -r(ate_adaptation) -n n_frames -s snr_dB -k ricean_factor -t max_delay -f forgetting factor -A channel_model -z cooperation_flag -u nb_local_ue -U UE mobility -b nb_local_enb -B eNB_mobility -M ethernet_flag -p nb_master -g multicast_group -l log_level -c ocg_enable -T traffic model -D multicast network device\n");
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  printf ("-h provides this help message!\n");
  printf ("-a Activates PHY abstraction mode\n");
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  printf (
      "-A set the multipath channel simulation,  options are: SCM_A, SCM_B, SCM_C, SCM_D, EPA, EVA, ETU, Rayleigh8, Rayleigh1, Rayleigh1_corr,Rayleigh1_anticorr, Rice8,, Rice1, AWGN \n");
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  printf ("-b Set the number of local eNB\n");
  printf ("-B Set the mobility model for eNB, options are: STATIC, RWP, RWALK, \n");
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  printf (
      "-c [1,2,3,4] Activate the config generator (OCG) to process the scenario descriptor, or give the scenario manually: -c template_1.xml \n");
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  printf ("-C [0-6] Sets TDD configuration\n");
  printf ("-e Activates extended prefix mode\n");
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  printf ("-E Random number generator seed\n");
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  printf ("-f Set the forgetting factor for time-variation\n");
  printf ("-F Activates FDD transmission (TDD is default)\n");
  printf ("-g Set multicast group ID (0,1,2,3) - valid if M is set\n");
  printf ("-G Enable background traffic \n");
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  printf ("-H Enable handover operation (default disabled) \n");
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  printf ("-I Enable CLI interface (to connect use telnet localhost 1352)\n");
  printf ("-k Set the Ricean factor (linear)\n");
  printf ("-l Set the global log level (8:trace, 7:debug, 6:info, 4:warn, 3:error) \n");
  printf ("-L [0-1] 0 to disable new link adaptation, 1 to enable new link adapatation\n");
  printf ("-m Gives a fixed DL mcs\n");
  printf ("-M Set the machine ID for Ethernet-based emulation\n");
  printf ("-n Set the number of frames for the simulation\n");
  printf ("-O [mme ipv4 address] Enable MME mode\n");
  printf ("-p Set the total number of machine in emulation - valid if M is set\n");
  printf ("-P [trace type] Enable protocol analyzer. Possible values for OPT:\n");
  printf ("    - wireshark: Enable tracing of layers above PHY using an UDP socket\n");
  printf ("    - pcap:      Enable tracing of layers above PHY to a pcap file\n");
  printf ("    - tshark:    Not implemented yet\n");
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  printf (
      "-Q Activate and set the MBMS service: 0 : not used (default eMBMS disabled), 1: eMBMS and RRC Connection enabled, 2: eMBMS relaying and RRC Connection enabled, 3: eMBMS enabled, RRC Connection disabled, 4: eMBMS relaying enabled, RRC Connection disabled\n");
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  printf ("-R [6,15,25,50,75,100] Sets N_RB_DL\n");
  printf ("-r Activates rate adaptation (DL for now)\n");
  printf ("-s snr_dB set a fixed (average) SNR, this deactivates the openair channel model generator (OCM)\n");
  printf ("-S snir_dB set a fixed (average) SNIR, this deactivates the openair channel model generator (OCM)\n");
  printf ("-t Set the delay spread (microseconds)\n");
  printf ("-T activate the traffic generator: cbr, mcbr, bcbr, mscbr \n");
  printf ("-u Set the number of local UE\n");
  printf ("-U Set the mobility model for UE, options are: STATIC, RWP, RWALK \n");
  printf ("-V Enable VCD dump, file = openair_vcd_dump.vcd\n");
  printf ("-w number of CBA groups, if not specified or zero, CBA is inactive\n");
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  printf (
      "-W IP address to connect to SMBV and configure SMBV from config file. Requires compilation with SMBV=1, -W0 uses default IP 192.168.12.201\n");
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  printf ("-x Set the transmission mode (1,2,5,6 supported for now)\n");
  printf ("-Y Set the global log verbosity (none, low, medium, high, full) \n");
  printf ("-z Set the cooperation flag (0 for no cooperation, 1 for delay diversity and 2 for distributed alamouti\n");
  printf ("-Z Reserved\n");
}

pthread_t log_thread;

void log_thread_init() {
  //create log_list
  //log_list_init(&log_list);
#ifndef LOG_NO_THREAD

  log_shutdown = 0;

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  if ((pthread_mutex_init (&log_lock, NULL) != 0) || (pthread_cond_init (&log_notify, NULL) != 0)) {
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    return;
  }

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  if (pthread_create (&log_thread, NULL, log_thread_function, (void*) NULL) != 0) {
    log_thread_finalize ();
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    return;
  }
#endif

}

//Call it after the last LOG call
int log_thread_finalize() {
  int err = 0;

#ifndef LOG_NO_THREAD

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  if (pthread_mutex_lock (&log_lock) != 0) {
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    return -1;
  }

  log_shutdown = 1;

  /* Wake up LOG thread */
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  if ((pthread_cond_broadcast (&log_notify) != 0) || (pthread_mutex_unlock (&log_lock) != 0)) {
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    err = -1;
  }
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  if (pthread_join (log_thread, NULL) != 0) {
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    err = -1;
  }
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  if (pthread_mutex_unlock (&log_lock) != 0) {
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    err = -1;
  }

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  if (!err) {
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    //log_list_free(&log_list);
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    pthread_mutex_lock (&log_lock);
    pthread_mutex_destroy (&log_lock);
    pthread_cond_destroy (&log_notify);
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  }
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#endif

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  return err;
}

#ifdef OPENAIR2
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int omv_write(int pfd, Node_list enb_node_list, Node_list ue_node_list, Data_Flow_Unit omv_data) {
  int i, j;
  omv_data.end = 0;
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  //omv_data.total_num_nodes = NB_UE_INST + NB_eNB_INST;
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  for (i = 0; i < NB_eNB_INST; i++) {
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    if (enb_node_list != NULL) {
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      omv_data.geo[i].x = (enb_node_list->node->X_pos < 0.0) ? 0.0 : enb_node_list->node->X_pos;
      omv_data.geo[i].y = (enb_node_list->node->Y_pos < 0.0) ? 0.0 : enb_node_list->node->Y_pos;
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      omv_data.geo[i].z = 1.0;
      omv_data.geo[i].mobility_type = oai_emulation.info.omg_model_enb;
      omv_data.geo[i].node_type = 0; //eNB
      enb_node_list = enb_node_list->next;
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      omv_data.geo[i].Neighbors = 0;
      for (j = NB_eNB_INST; j < NB_UE_INST + NB_eNB_INST; j++) {
        if (is_UE_active (i, j - NB_eNB_INST) == 1) {
          omv_data.geo[i].Neighbor[omv_data.geo[i].Neighbors] = j;
          omv_data.geo[i].Neighbors++;
          LOG_D(
              OMG,
              "[eNB %d][UE %d] is_UE_active(i,j) %d geo (x%d, y%d) num neighbors %d\n", i, j-NB_eNB_INST, is_UE_active(i,j-NB_eNB_INST), omv_data.geo[i].x, omv_data.geo[i].y, omv_data.geo[i].Neighbors);
        }
      }
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    }
  }
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  for (i = NB_eNB_INST; i < NB_UE_INST + NB_eNB_INST; i++) {
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    if (ue_node_list != NULL) {
      omv_data.geo[i].x = (ue_node_list->node->X_pos < 0.0) ? 0.0 : ue_node_list->node->X_pos;
      omv_data.geo[i].y = (ue_node_list->node->Y_pos < 0.0) ? 0.0 : ue_node_list->node->Y_pos;
      omv_data.geo[i].z = 1.0;
      omv_data.geo[i].mobility_type = oai_emulation.info.omg_model_ue;
      omv_data.geo[i].node_type = 1; //UE
      //trial
      omv_data.geo[i].state = 1;
      omv_data.geo[i].rnti = 88;
      omv_data.geo[i].connected_eNB = 0;
      omv_data.geo[i].RSRP = 66;
      omv_data.geo[i].RSRQ = 55;
      omv_data.geo[i].Pathloss = 44;
      omv_data.geo[i].RSSI[0] = 33;
      omv_data.geo[i].RSSI[1] = 22;
      omv_data.geo[i].RSSI[2] = 11;
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      ue_node_list = ue_node_list->next;
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      omv_data.geo[i].Neighbors = 0;
      for (j = 0; j < NB_eNB_INST; j++) {
        if (is_UE_active (j, i - NB_eNB_INST) == 1) {
          omv_data.geo[i].Neighbor[omv_data.geo[i].Neighbors] = j;
          omv_data.geo[i].Neighbors++;
          LOG_D(
              OMG,
              "[UE %d][eNB %d] is_UE_active  %d geo (x%d, y%d) num neighbors %d\n", i-NB_eNB_INST, j, is_UE_active(j,i-NB_eNB_INST), omv_data.geo[i].x, omv_data.geo[i].y, omv_data.geo[i].Neighbors);
        }
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      }
    }
  }
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  LOG_E(OMG, "pfd %d \n", pfd);
  if (write (pfd, &omv_data, sizeof(struct Data_Flow_Unit)) == -1)
    perror ("write omv failed");
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  return 1;
}

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void omv_end(int pfd, Data_Flow_Unit omv_data) {
  omv_data.end = 1;
  if (write (pfd, &omv_data, sizeof(struct Data_Flow_Unit)) == -1)
    perror ("write omv failed");
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}
#endif 

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#ifdef OPENAIR2
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int pfd[2]; // fd for omv : fixme: this could be a local var
#endif
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#ifdef OPENAIR2
static Data_Flow_Unit omv_data;
#endif //ALU
static s32 UE_id = 0, eNB_id = 0;
#ifdef Rel10
static s32 RN_id=0;
#endif
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void *l2l1_task(void *args_p) {
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  // Framing variables
  s32 slot, last_slot, next_slot;

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#ifdef Rel10
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  relaying_type_t r_type=no_relay; // no relaying
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#endif
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  lte_subframe_t direction;

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  char fname[64], vname[64];
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#if defined(ENABLE_ITTI)
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  MessageDef *message_p;
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  itti_mark_task_ready (TASK_L2L1);
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# if defined(ENABLE_USE_MME)
    /* Trying to register each eNB */
    for (eNB_id = oai_emulation.info.first_enb_local;
         (eNB_id < (oai_emulation.info.first_enb_local + oai_emulation.info.nb_enb_local)) && (oai_emulation.info.cli_start_enb[eNB_id] == 1);
         eNB_id++)
    {
        /* FIXME: acquire MMEs IP address by XML file or command line */
        char *mme_address_v4 = "192.168.12.87";
        char *mme_address_v6 = "2001:660:5502:12:30da:829a:2343:b6cf";
        s1ap_register_eNB_t *s1ap_register_eNB;
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        uint32_t hash;

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        /* FIXME: following parameters should be setup by eNB applicative layer ? */
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        message_p = itti_alloc_new_message(TASK_L2L1, S1AP_REGISTER_ENB);

        s1ap_register_eNB = &message_p->msg.s1ap_register_eNB;

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        hash = s1ap_generate_eNB_id();

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        /* Some default/random parameters */
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        s1ap_register_eNB->eNB_id      = eNB_id + (hash & 0xFFFF8);
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        s1ap_register_eNB->cell_type   = CELL_MACRO_ENB;
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        s1ap_register_eNB->tac         = 0;
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        s1ap_register_eNB->mcc         = 208;
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        s1ap_register_eNB->mnc         = 34;
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        s1ap_register_eNB->default_drx = PAGING_DRX_256;
        s1ap_register_eNB->nb_mme      = 1;
        s1ap_register_eNB->mme_ip_address[0].ipv4 = 1;
        s1ap_register_eNB->mme_ip_address[0].ipv6 = 0;
        memcpy(s1ap_register_eNB->mme_ip_address[0].ipv4_address, mme_address_v4,
               strlen(mme_address_v4));
        memcpy(s1ap_register_eNB->mme_ip_address[0].ipv6_address, mme_address_v6,
               strlen(mme_address_v6));

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        itti_send_msg_to_task(TASK_S1AP, eNB_id, message_p);
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    }
# endif
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#endif

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  for (frame = 0; frame < oai_emulation.info.n_frames; frame++) {
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#if defined(ENABLE_ITTI)
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    do {
      // Checks if a message has been sent to L2L1 task
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      itti_poll_msg (TASK_L2L1, &message_p);
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      if (message_p != NULL) {
        switch (message_p->header.messageId) {
          case TERMINATE_MESSAGE:
            itti_exit_task ();
            break;

          case MESSAGE_TEST:
            LOG_D(EMU, "Received %s\n", itti_get_message_name(message_p->header.messageId));
            break;

          default:
            LOG_E(EMU, "Received unexpected message %s\n", itti_get_message_name(message_p->header.messageId));
            break;
        }
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        free (message_p);
      }
    } while(message_p != NULL);
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#endif

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    /*
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     // Handling the cooperation Flag
     if (cooperation_flag == 2)
     {
     if ((PHY_vars_eNB_g[0]->eNB_UE_stats[0].mode == PUSCH) && (PHY_vars_eNB_g[0]->eNB_UE_stats[1].mode == PUSCH))
     PHY_vars_eNB_g[0]->cooperation_flag = 2;
     }
     */
    if (ue_connection_test == 1) {
      if ((frame % 20) == 0) {
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        snr_dB += snr_direction;
        sinr_dB -= snr_direction;
      }
      if (snr_dB == -20) {
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        snr_direction = snr_step;
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      }
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      else
        if (snr_dB == 20) {
          snr_direction = -snr_step;
        }
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    }

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    oai_emulation.info.frame = frame;
    //oai_emulation.info.time_ms += 1;
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    oai_emulation.info.time_s += 0.1; // emu time in s, each frame lasts for 10 ms // JNote: TODO check the coherency of the time and frame (I corrected it to 10 (instead of 0.01)
    // if n_frames not set by the user or is greater than max num frame then set adjust the frame counter
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    if ((oai_emulation.info.n_frames_flag == 0) || (oai_emulation.info.n_frames >= 0xffff)) {
      frame %= (oai_emulation.info.n_frames - 1);
    }

    update_omg (); // frequency is defined in the omg_global params configurable by the user
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    update_omg_ocm ();
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#ifdef OPENAIR2
    // check if pipe is still open
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    if ((oai_emulation.info.omv_enabled == 1)) {
      omv_write (pfd[1], enb_node_list, ue_node_list, omv_data);
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    }
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#endif
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#ifdef DEBUG_OMG
    if ((((int) oai_emulation.info.time_s) % 100) == 0) {
      for (UE_id = oai_emulation.info.first_ue_local; UE_id < (oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local); UE_id++) {
        get_node_position (UE, UE_id);
      }
    }
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#endif

    update_ocm ();

    for (slot = 0; slot < 20; slot++) {
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      wait_for_slot_isr ();
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      last_slot = (slot - 1) % 20;
      if (last_slot < 0)
        last_slot += 20;
      next_slot = (slot + 1) % 20;
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      oai_emulation.info.time_ms = frame * 10 + (slot >> 1);
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      direction = subframe_select (frame_parms, next_slot >> 1);
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#ifdef PROC
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      if(Channel_Flag==1)
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      Channel_Func(s_re2,s_im2,r_re2,r_im2,r_re02,r_im02,r_re0_d,r_im0_d,r_re0_u,r_im0_u,eNB2UE,UE2eNB,enb_data,ue_data,abstraction_flag,frame_parms,slot);
520 521 522 523

      if(Channel_Flag==0)
#endif
      {
524 525
        if ((next_slot % 2) == 0)
          clear_eNB_transport_info (oai_emulation.info.nb_enb_local);
526

527 528 529
        for (eNB_id = oai_emulation.info.first_enb_local;
            (eNB_id < (oai_emulation.info.first_enb_local + oai_emulation.info.nb_enb_local))
                && (oai_emulation.info.cli_start_enb[eNB_id] == 1); eNB_id++) {
530 531
          //printf ("debug: Nid_cell %d\n", PHY_vars_eNB_g[eNB_id]->lte_frame_parms.Nid_cell);
          //printf ("debug: frame_type %d,tdd_config %d\n", PHY_vars_eNB_g[eNB_id]->lte_frame_parms.frame_type,PHY_vars_eNB_g[eNB_id]->lte_frame_parms.tdd_config);
532 533 534
          LOG_D(
              EMU,
              "PHY procedures eNB %d for frame %d, slot %d (subframe TX %d, RX %d) TDD %d/%d Nid_cell %d\n", eNB_id, frame, slot, next_slot >> 1, last_slot>>1, PHY_vars_eNB_g[eNB_id]->lte_frame_parms.frame_type, PHY_vars_eNB_g[eNB_id]->lte_frame_parms.tdd_config, PHY_vars_eNB_g[eNB_id]->lte_frame_parms.Nid_cell);
535 536

          //Appliation: traffic gen
537
          update_otg_eNB (eNB_id, oai_emulation.info.time_ms);
538 539

          //IP/OTG to PDCP and PDCP to IP operation
540 541 542 543
          pdcp_run (frame, 1, 0, eNB_id); //PHY_vars_eNB_g[eNB_id]->Mod_id

          // PHY_vars_eNB_g[eNB_id]->frame = frame;
          phy_procedures_eNB_lte (last_slot, next_slot, PHY_vars_eNB_g[eNB_id], abstraction_flag, no_relay, NULL);
544 545

#ifdef PRINT_STATS
546 547 548 549 550 551 552 553 554
          if(last_slot==9 && frame%10==0)
          if(eNB_avg_thr)
          fprintf(eNB_avg_thr,"%d %d\n",PHY_vars_eNB_g[eNB_id]->frame,(PHY_vars_eNB_g[eNB_id]->total_system_throughput)/((PHY_vars_eNB_g[eNB_id]->frame+1)*10));
          if (eNB_stats[eNB_id]) {
            len = dump_eNB_stats(PHY_vars_eNB_g[eNB_id], stats_buffer, 0);
            rewind (eNB_stats[eNB_id]);
            fwrite (stats_buffer, 1, len, eNB_stats[eNB_id]);
            fflush(eNB_stats[eNB_id]);
          }
555
#ifdef OPENAIR2
556 557 558 559 560 561 562
          if (eNB_l2_stats) {
            len = dump_eNB_l2_stats (stats_buffer, 0);
            rewind (eNB_l2_stats);
            fwrite (stats_buffer, 1, len, eNB_l2_stats);
            fflush(eNB_l2_stats);
          }
#endif
563 564 565 566 567 568 569 570 571
#endif
        }
        // Call ETHERNET emulation here
        //emu_transport (frame, last_slot, next_slot, direction, oai_emulation.info.frame_type, ethernet_flag);

        if ((next_slot % 2) == 0)
          clear_UE_transport_info (oai_emulation.info.nb_ue_local);

        for (UE_id = oai_emulation.info.first_ue_local;
572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619
            (UE_id < (oai_emulation.info.first_ue_local + oai_emulation.info.nb_ue_local))
                && (oai_emulation.info.cli_start_ue[UE_id] == 1); UE_id++) {
          if (frame >= (UE_id * 20)) { // activate UE only after 20*UE_id frames so that different UEs turn on separately

            LOG_D(
                EMU,
                "PHY procedures UE %d for frame %d, slot %d (subframe TX %d, RX %d)\n", UE_id, frame, slot, next_slot >> 1, last_slot>>1);

            if (PHY_vars_UE_g[UE_id]->UE_mode[0] != NOT_SYNCHED) {
              if (frame > 0) {
                PHY_vars_UE_g[UE_id]->frame = frame;

                //Application
                update_otg_UE (UE_id, oai_emulation.info.time_ms);

                //Access layer
                pdcp_run (frame, 0, UE_id, 0);

                phy_procedures_UE_lte (last_slot, next_slot, PHY_vars_UE_g[UE_id], 0, abstraction_flag, normal_txrx,
                                       no_relay, NULL);
                ue_data[UE_id]->tx_power_dBm = PHY_vars_UE_g[UE_id]->tx_power_dBm;
              }
            }
            else {
              if (abstraction_flag == 1) {
                LOG_E(
                    EMU,
                    "sync not supported in abstraction mode (UE%d,mode%d)\n", UE_id, PHY_vars_UE_g[UE_id]->UE_mode[0]);
                exit (-1);
              }
              if ((frame > 0) && (last_slot == (LTE_SLOTS_PER_FRAME - 2))) {
                initial_sync (PHY_vars_UE_g[UE_id], normal_txrx);

                /*
                 write_output("dlchan00.m","dlch00",&(PHY_vars_UE_g[0]->lte_ue_common_vars.dl_ch_estimates[0][0][0]),(6*(PHY_vars_UE_g[0]->lte_frame_parms.ofdm_symbol_size)),1,1);
                 if (PHY_vars_UE_g[0]->lte_frame_parms.nb_antennas_rx>1)
                 write_output("dlchan01.m","dlch01",&(PHY_vars_UE_g[0]->lte_ue_common_vars.dl_ch_estimates[0][1][0]),(6*(PHY_vars_UE_g[0]->lte_frame_parms.ofdm_symbol_size)),1,1);
                 write_output("dlchan10.m","dlch10",&(PHY_vars_UE_g[0]->lte_ue_common_vars.dl_ch_estimates[0][2][0]),(6*(PHY_vars_UE_g[0]->lte_frame_parms.ofdm_symbol_size)),1,1);
                 if (PHY_vars_UE_g[0]->lte_frame_parms.nb_antennas_rx>1)
                 write_output("dlchan11.m","dlch11",&(PHY_vars_UE_g[0]->lte_ue_common_vars.dl_ch_estimates[0][3][0]),(6*(PHY_vars_UE_g[0]->lte_frame_parms.ofdm_symbol_size)),1,1);
                 write_output("rxsig.m","rxs",PHY_vars_UE_g[0]->lte_ue_common_vars.rxdata[0],PHY_vars_UE_g[0]->lte_frame_parms.samples_per_tti*10,1,1);
                 write_output("rxsigF.m","rxsF",PHY_vars_UE_g[0]->lte_ue_common_vars.rxdataF[0],2*PHY_vars_UE_g[0]->lte_frame_parms.symbols_per_tti*PHY_vars_UE_g[0]->lte_frame_parms.ofdm_symbol_size,2,1);
                 write_output("pbch_rxF_ext0.m","pbch_ext0",PHY_vars_UE_g[0]->lte_ue_pbch_vars[0]->rxdataF_ext[0],6*12*4,1,1);
                 write_output("pbch_rxF_comp0.m","pbch_comp0",PHY_vars_UE_g[0]->lte_ue_pbch_vars[0]->rxdataF_comp[0],6*12*4,1,1);
                 write_output("pbch_rxF_llr.m","pbch_llr",PHY_vars_UE_g[0]->lte_ue_pbch_vars[0]->llr,(frame_parms->Ncp==0) ? 1920 : 1728,1,4);
                 */
              }
            }
620
#ifdef PRINT_STATS
621 622 623 624 625 626 627 628 629
            if(last_slot==2 && frame%10==0)
            if (UE_stats_th[UE_id])
            fprintf(UE_stats_th[UE_id],"%d %d\n",frame, PHY_vars_UE_g[UE_id]->bitrate[0]/1000);
            if (UE_stats[UE_id]) {
              len = dump_ue_stats (PHY_vars_UE_g[UE_id], stats_buffer, 0, normal_txrx, 0);
              rewind (UE_stats[UE_id]);
              fwrite (stats_buffer, 1, len, UE_stats[UE_id]);
              fflush(UE_stats[UE_id]);
            }
630
#endif
631 632
          }
        }
633
#ifdef Rel10
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        for (RN_id=oai_emulation.info.first_rn_local;
            RN_id<oai_emulation.info.first_rn_local+oai_emulation.info.nb_rn_local;
            RN_id++) {
          // UE id and eNB id of the RN
          UE_id= oai_emulation.info.first_ue_local+oai_emulation.info.nb_ue_local + RN_id;// NB_UE_INST + RN_id
          eNB_id= oai_emulation.info.first_enb_local+oai_emulation.info.nb_enb_local + RN_id;// NB_eNB_INST + RN_id
          // currently only works in FDD
          if (oai_emulation.info.eMBMS_active_state == 4) {
            r_type = multicast_relay;
            //LOG_I(EMU,"Activating the multicast relaying\n");
          }
          else {
            LOG_E(EMU,"Not supported eMBMS option when relaying is enabled %d\n", r_type);
            exit(-1);
          }
          PHY_vars_RN_g[RN_id]->frame = frame;
          if ( oai_emulation.info.frame_type == 0) {
            // RN == UE
            if (frame>0) {
              if (PHY_vars_UE_g[UE_id]->UE_mode[0] != NOT_SYNCHED) {
                LOG_D(EMU,"[RN %d] PHY procedures UE %d for frame %d, slot %d (subframe TX %d, RX %d)\n",
                    RN_id, UE_id, frame, slot, next_slot >> 1,last_slot>>1);
                PHY_vars_UE_g[UE_id]->frame = frame;
                phy_procedures_UE_lte (last_slot, next_slot, PHY_vars_UE_g[UE_id], 0, abstraction_flag,normal_txrx,
                    r_type, PHY_vars_RN_g[RN_id]);
              }
              else if (last_slot == (LTE_SLOTS_PER_FRAME-2)) {
                initial_sync(PHY_vars_UE_g[UE_id],normal_txrx);
              }
            }
            // RN == eNB
            LOG_D(EMU,"[RN %d] PHY procedures eNB %d for frame %d, slot %d (subframe TX %d, RX %d)\n",
                RN_id, eNB_id, frame, slot, next_slot >> 1,last_slot>>1);
            phy_procedures_eNB_lte (last_slot, next_slot, PHY_vars_eNB_g[eNB_id], abstraction_flag,
                r_type, PHY_vars_RN_g[RN_id]);
          }
          else {
            LOG_E(EMU,"TDD is not supported for multicast relaying %d\n", r_type);
            exit(-1);
          }
        }
675
#endif
676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694
        emu_transport (frame, last_slot, next_slot, direction, oai_emulation.info.frame_type, ethernet_flag);
        if ((direction == SF_DL) || (frame_parms->frame_type == 0)) {
          // consider only sec id 0
          /*  for (eNB_id=0;eNB_id<NB_eNB_INST;eNB_id++) {
           if (abstraction_flag == 0) {
           do_OFDM_mod(PHY_vars_eNB_g[eNB_id]->lte_eNB_common_vars.txdataF[0],
           PHY_vars_eNB_g[eNB_id]->lte_eNB_common_vars.txdata[0],
           frame,next_slot,
           frame_parms);
           }
           }*/
          for (UE_id = 0; UE_id < NB_UE_INST; UE_id++) {
            do_DL_sig (r_re0, r_im0, r_re, r_im, s_re, s_im, eNB2UE, enb_data, ue_data, next_slot, abstraction_flag,
                       frame_parms, UE_id);
          }
        }
        if ((direction == SF_UL) || (frame_parms->frame_type == 0)) { //if ((subframe<2) || (subframe>4))
          do_UL_sig (r_re0, r_im0, r_re, r_im, s_re, s_im, UE2eNB, enb_data, ue_data, next_slot, abstraction_flag,
                     frame_parms, frame);
695
          /*
696 697 698 699 700 701 702 703
           int ccc;
           fprintf(SINRpost,"SINRdb For eNB New Subframe : \n ");
           for(ccc = 0 ; ccc<301; ccc++)
           {
           fprintf(SINRpost,"_ %f ", SINRpost_eff[ccc]);
           }
           fprintf(SINRpost,"SINRdb For eNB : %f \n ", SINRpost_eff[ccc]);
           */
704
        }
705 706 707 708 709 710 711 712 713 714 715 716 717
        if ((direction == SF_S)) { //it must be a special subframe
          if (next_slot % 2 == 0) { //DL part
            /*  for (eNB_id=0;eNB_id<NB_eNB_INST;eNB_id++) {
             if (abstraction_flag == 0) {
             do_OFDM_mod(PHY_vars_eNB_g[eNB_id]->lte_eNB_common_vars.txdataF[0],
             PHY_vars_eNB_g[eNB_id]->lte_eNB_common_vars.txdata[0],
             frame,next_slot,
             frame_parms);
             }
             }*/
            for (UE_id = 0; UE_id < NB_UE_INST; UE_id++) {
              do_DL_sig (r_re0, r_im0, r_re, r_im, s_re, s_im, eNB2UE, enb_data, ue_data, next_slot, abstraction_flag,
                         frame_parms, UE_id);
718
            }
719 720 721 722 723 724
            /*
             for (aarx=0;aarx<UE2eNB[1][0]->nb_rx;aarx++)
             for (aatx=0;aatx<UE2eNB[1][0]->nb_tx;aatx++)
             for (k=0;k<UE2eNB[1][0]->channel_length;k++)
             printf("SB(%d,%d,%d)->(%f,%f)\n",k,aarx,aatx,UE2eNB[1][0]->ch[aarx+(aatx*UE2eNB[1][0]->nb_rx)][k].r,UE2eNB[1][0]->ch[aarx+(aatx*UE2eNB[1][0]->nb_rx)][k].i);
             */
725
          }
726 727 728 729 730 731 732 733 734 735 736 737 738 739 740
          else { // UL part
            do_UL_sig (r_re0, r_im0, r_re, r_im, s_re, s_im, UE2eNB, enb_data, ue_data, next_slot, abstraction_flag,
                       frame_parms, frame);

            /*        int ccc;
             fprintf(SINRpost,"SINRdb For eNB New Subframe : \n ");
             for(ccc = 0 ; ccc<301; ccc++)
             {
             fprintf(SINRpost,"_ %f ", SINRpost_eff[ccc]);
             }
             fprintf(SINRpost,"SINRdb For eNB : %f \n ", SINRpost_eff[ccc]);
             }
             */}
        }
        if ((last_slot == 1) && (frame == 0) && (abstraction_flag == 0) && (oai_emulation.info.n_frames == 1)) {
741

742
          write_output ("dlchan0.m", "dlch0", &(PHY_vars_UE_g[0]->lte_ue_common_vars.dl_ch_estimates[0][0][0]),
743
                        (6 * (PHY_vars_UE_g[0]->lte_frame_parms.ofdm_symbol_size)), 1, 1);
744
          write_output ("dlchan1.m", "dlch1", &(PHY_vars_UE_g[0]->lte_ue_common_vars.dl_ch_estimates[1][0][0]),
745
                        (6 * (PHY_vars_UE_g[0]->lte_frame_parms.ofdm_symbol_size)), 1, 1);
746
          write_output ("dlchan2.m", "dlch2", &(PHY_vars_UE_g[0]->lte_ue_common_vars.dl_ch_estimates[2][0][0]),
747
                        (6 * (PHY_vars_UE_g[0]->lte_frame_parms.ofdm_symbol_size)), 1, 1);
748 749 750 751
          write_output ("pbch_rxF_comp0.m", "pbch_comp0", PHY_vars_UE_g[0]->lte_ue_pbch_vars[0]->rxdataF_comp[0],
                        6 * 12 * 4, 1, 1);
          write_output ("pbch_rxF_llr.m", "pbch_llr", PHY_vars_UE_g[0]->lte_ue_pbch_vars[0]->llr,
                        (frame_parms->Ncp == 0) ? 1920 : 1728, 1, 4);
752 753 754 755 756 757
        }
        /*
         if ((last_slot==1) && (frame==1)) {
         write_output("dlsch_rxF_comp0.m","dlsch0_rxF_comp0",PHY_vars_UE->lte_ue_pdsch_vars[eNB_id]->rxdataF_comp[0],300*(-(PHY_vars_UE->lte_frame_parms.Ncp*2)+14),1,1);
         write_output("pdcch_rxF_comp0.m","pdcch0_rxF_comp0",PHY_vars_UE->lte_ue_pdcch_vars[eNB_id]->rxdataF_comp[0],4*300,1,1);
         }
758
         */
759

760
        if (next_slot % 2 == 0) {
761 762 763 764
          clock_gettime (CLOCK_REALTIME, &time_spec);
          time_last = time_now;
          time_now = (unsigned long) time_spec.tv_nsec;
          td = (int) (time_now - time_last);
765 766 767 768 769
          if (td > 0) {
            td_avg = (int) (((K * (long) td) + (((1 << 3) - K) * ((long) td_avg))) >> 3); // in us
            LOG_T(
                EMU,
                "sleep frame %d, time_now %ldus,time_last %ldus,average time difference %ldns, CURRENT TIME DIFF %dus, avgerage difference from the target %dus\n", frame, time_now, time_last, td_avg, td/1000, (td_avg-TARGET_SF_TIME_NS)/1000);
770
          }
771
          if (td_avg < (TARGET_SF_TIME_NS - SF_DEVIATION_OFFSET_NS)) {
772
            sleep_time_us += SLEEP_STEP_US;
773
            LOG_D(EMU, "Faster than realtime increase the avg sleep time for %d us, frame %d\n", sleep_time_us, frame);
774 775
            // LOG_D(EMU,"Faster than realtime increase the avg sleep time for %d us, frame %d, time_now %ldus,time_last %ldus,average time difference %ldns, CURRENT TIME DIFF %dus, avgerage difference from the target %dus\n",    sleep_time_us,frame, time_now,time_last,td_avg, td/1000,(td_avg-TARGET_SF_TIME_NS)/1000);
          }
776 777 778 779 780 781 782 783
          else
            if (td_avg > (TARGET_SF_TIME_NS + SF_DEVIATION_OFFSET_NS)) {
              sleep_time_us -= SLEEP_STEP_US;
              LOG_D(
                  EMU,
                  "Slower than realtime reduce the avg sleep time for %d us, frame %d, time_now\n", sleep_time_us, frame);
              //LOG_T(EMU,"Slower than realtime reduce the avg sleep time for %d us, frame %d, time_now %ldus,time_last %ldus,average time difference %ldns, CURRENT TIME DIFF %dus, avgerage difference from the target %dus\n",     sleep_time_us,frame, time_now,time_last,td_avg, td/1000,(td_avg-TARGET_SF_TIME_NS)/1000);
            }
784
        } // end if next_slot%2
785 786 787
      } // if Channel_Flag==0

    } //end of slot
788

789
    if ((frame >= 1) && (frame <= 9) && (abstraction_flag == 0)
790
#ifdef PROC
791
        &&(Channel_Flag==0)
792
#endif
793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809
        ) {
      write_output ("UEtxsig0.m", "txs0", PHY_vars_UE_g[0]->lte_ue_common_vars.txdata[0], FRAME_LENGTH_COMPLEX_SAMPLES,
                    1, 1);
      sprintf (fname, "eNBtxsig%d.m", frame);
      sprintf (vname, "txs%d", frame);
      write_output (fname, vname, PHY_vars_eNB_g[0]->lte_eNB_common_vars.txdata[0][0], FRAME_LENGTH_COMPLEX_SAMPLES, 1,
                    1);
      write_output (
          "eNBtxsigF0.m", "txsF0", PHY_vars_eNB_g[0]->lte_eNB_common_vars.txdataF[0][0],
          PHY_vars_eNB_g[0]->lte_frame_parms.symbols_per_tti * PHY_vars_eNB_g[0]->lte_frame_parms.ofdm_symbol_size, 1,
          1);

      write_output ("UErxsig0.m", "rxs0", PHY_vars_UE_g[0]->lte_ue_common_vars.rxdata[0], FRAME_LENGTH_COMPLEX_SAMPLES,
                    1, 1);
      write_output ("eNBrxsig0.m", "rxs0", PHY_vars_eNB_g[0]->lte_eNB_common_vars.rxdata[0][0],
                    FRAME_LENGTH_COMPLEX_SAMPLES, 1, 1);
    }
810 811 812 813

#ifdef XFORMS
    eNB_id = 0;
    for (UE_id = 0; UE_id < NB_UE_INST; UE_id++) {
814 815 816 817 818 819 820 821 822 823
      phy_scope_UE(form_ue[UE_id],
          PHY_vars_UE_g[UE_id],
          eNB_id,
          UE_id,
          7);

      phy_scope_eNB(form_enb[UE_id],
          PHY_vars_eNB_g[eNB_id],
          UE_id);

824
    }
825
#endif
826 827

    // calibrate at the end of each frame if there is some time  left
828 829 830 831
    if ((sleep_time_us > 0) && (ethernet_flag == 0)) {
      LOG_I(EMU, "[TIMING] Adjust average frame duration, sleep for %d us\n", sleep_time_us);
      usleep (sleep_time_us);
      sleep_time_us = 0; // reset the timer, could be done per n SF
832 833 834
    }
#ifdef SMBV
    if ((frame == config_frames[0]) || (frame == config_frames[1]) || (frame == config_frames[2]) || (frame == config_frames[3])) {
835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937
      smbv_frame_cnt++;
    }
#endif
  } //end of frame

#if defined(ENABLE_ITTI)
  itti_terminate_tasks(TASK_L2L1);
#endif

  return NULL;
}

Packet_OTG_List *otg_pdcp_buffer;

int main(int argc, char **argv) {

  s32 i;
  // pointers signal buffers (s = transmit, r,r0 = receive)
  clock_t t;

  //FILE *SINRpost;
  //char SINRpost_fname[512];
  // sprintf(SINRpost_fname,"postprocSINR.m");
  //SINRpost = fopen(SINRpost_fname,"w");
  // variables/flags which are set by user on command-line

#ifdef SMBV
  strcpy(smbv_ip,DEFAULT_SMBV_IP);
#endif

  // time calibration for soft realtime mode  

  // u8 awgn_flag = 0;
#ifdef XFORMS
  // current status is that every UE has a DL scope for a SINGLE eNB (eNB_id=0)
  // at eNB 0, an UL scope for every UE 
  FD_lte_phy_scope_ue *form_ue[NUMBER_OF_UE_MAX];
  FD_lte_phy_scope_enb *form_enb[NUMBER_OF_UE_MAX];
  char title[255];
#endif

#ifdef PRINT_STATS
  int len;
  FILE *UE_stats[NUMBER_OF_UE_MAX], *UE_stats_th[NUMBER_OF_UE_MAX], *eNB_stats[NUMBER_OF_eNB_MAX], *eNB_avg_thr, *eNB_l2_stats;
  char UE_stats_filename[255];
  char eNB_stats_filename[255];
  char UE_stats_th_filename[255];
  char eNB_stats_th_filename[255];
#endif

  //time_t t0,t1;
  //clock_t start, stop;

#ifdef PROC
  int node_id;
  int port,Process_Flag=0,wgt,Channel_Flag=0,temp;
#endif
  //double **s_re2[MAX_eNB+MAX_UE], **s_im2[MAX_eNB+MAX_UE], **r_re2[MAX_eNB+MAX_UE], **r_im2[MAX_eNB+MAX_UE], **r_re02, **r_im02;
  //double **r_re0_d[MAX_UE][MAX_eNB], **r_im0_d[MAX_UE][MAX_eNB], **r_re0_u[MAX_eNB][MAX_UE],**r_im0_u[MAX_eNB][MAX_UE];
  //default parameters
  rate_adaptation_flag = 0;
  oai_emulation.info.n_frames = 0xffff; //1024;          //10;
  oai_emulation.info.n_frames_flag = 0; //fixme
  snr_dB = 30;
  cooperation_flag = 0; // default value 0 for no cooperation, 1 for Delay diversity, 2 for Distributed Alamouti

  //Default values if not changed by the user in get_simulation_options();
  pdcp_period = 1;
  omg_period = 1;
  // start thread for log gen
  log_thread_init ();

  init_oai_emulation (); // to initialize everything !!!

  // get command-line options
  get_simulation_options (argc, argv); //Command-line options

  // Initialize VCD LOG module
  vcd_signal_dumper_init ("openair_dump.vcd");

  /*  pthread_t sigth;
   sigset_t sigblock;
   sigemptyset(&sigblock);
   sigaddset(&sigblock, SIGHUP);
   sigaddset(&sigblock, SIGINT);
   sigaddset(&sigblock, SIGTERM);
   pthread_sigmask(SIG_BLOCK, &sigblock, NULL);
   if (pthread_create(&sigth, NULL, sigh, NULL)) {
   msg("Pthread for tracing Signals is not created!\n");
   return -1;
   } else {
   msg("Pthread for tracing Signals is created!\n");
   }*/
  // configure oaisim with OCG
  oaisim_config (); // config OMG and OCG, OPT, OTG, OLG

  if (ue_connection_test == 1) {
    snr_direction = -snr_step;
    snr_dB = 20;
    sinr_dB = -20;
  }

#if defined(ENABLE_ITTI)
938
  itti_init(TASK_MAX, THREAD_MAX, MESSAGES_ID_MAX, tasks_info, messages_info, messages_definition_xml, oai_emulation.info.itti_dump_file);
939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011
#endif

#ifdef OPENAIR2
  init_omv ();
#endif
  //Before this call, NB_UE_INST and NB_eNB_INST are not set correctly

  check_and_adjust_params ();

#ifdef PRINT_STATS
  for (UE_id=0;UE_id<NB_UE_INST;UE_id++) {
    sprintf(UE_stats_filename,"UE_stats%d.txt",UE_id);
    UE_stats[UE_id] = fopen (UE_stats_filename, "w");
  }
  for (eNB_id=0;eNB_id<NB_eNB_INST;eNB_id++) {
    sprintf(eNB_stats_filename,"eNB_stats%d.txt",eNB_id);
    eNB_stats[eNB_id] = fopen (eNB_stats_filename, "w");
  }

  if(abstraction_flag==0) {
    for (UE_id=0;UE_id<NB_UE_INST;UE_id++) {
      sprintf(UE_stats_th_filename,"UE_stats_th%d_tx%d.txt",UE_id,oai_emulation.info.transmission_mode);
      UE_stats_th[UE_id] = fopen (UE_stats_th_filename, "w");
    }
    sprintf(eNB_stats_th_filename,"eNB_stats_th_tx%d.txt",oai_emulation.info.transmission_mode);
    eNB_avg_thr = fopen (eNB_stats_th_filename, "w");
  }
  else {
    for (UE_id=0;UE_id<NB_UE_INST;UE_id++) {
      sprintf(UE_stats_th_filename,"UE_stats_abs_th%d_tx%d.txt",UE_id,oai_emulation.info.transmission_mode);
      UE_stats_th[UE_id] = fopen (UE_stats_th_filename, "w");
    }
    sprintf(eNB_stats_th_filename,"eNB_stats_abs_th_tx%d.txt",oai_emulation.info.transmission_mode);
    eNB_avg_thr = fopen (eNB_stats_th_filename, "w");
  }
#ifdef OPENAIR2
  eNB_l2_stats = fopen ("eNB_l2_stats.txt", "w");
  LOG_I(EMU,"eNB_l2_stats=%p\n", eNB_l2_stats);
#endif 

#endif

  set_seed = oai_emulation.emulation_config.seed.value;

  init_otg_pdcp_buffer ();

  init_seed (set_seed);

  init_openair1 ();

  init_openair2 ();

  init_ocm ();

#ifdef XFORMS
  eNB_id = 0;
  for (UE_id = 0; UE_id < NB_UE_INST; UE_id++) {
    // DL scope at UEs
    fl_initialize (&argc, argv, NULL, 0, 0);
    form_ue[UE_id] = create_lte_phy_scope_ue();
    sprintf (title, "LTE DL SCOPE eNB %d to UE %d", eNB_id, UE_id);
    fl_show_form (form_ue[UE_id]->lte_phy_scope_ue, FL_PLACE_HOTSPOT, FL_FULLBORDER, title);

    // UL scope at eNB 0
    fl_initialize (&argc, argv, NULL, 0, 0);
    form_enb[UE_id] = create_lte_phy_scope_enb();
    sprintf (title, "LTE UL SCOPE UE %d to eNB %d", UE_id, eNB_id);
    fl_show_form (form_enb[UE_id]->lte_phy_scope_enb, FL_PLACE_HOTSPOT, FL_FULLBORDER, title);

    if (openair_daq_vars.use_ia_receiver == 1) {
      fl_set_button(form_ue[UE_id]->button_0,1);
      fl_set_object_label(form_ue[UE_id]->button_0, "IA Receiver ON");
      fl_set_object_color(form_ue[UE_id]->button_0, FL_GREEN, FL_GREEN);
1012
    }
1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030

  }
#endif

#ifdef SMBV
  smbv_init_config(smbv_fname, smbv_nframes);
  smbv_write_config_from_frame_parms(smbv_fname, &PHY_vars_eNB_g[0]->lte_frame_parms);
#endif

  init_time ();

  init_slot_isr ();

  t = clock ();

  LOG_N(EMU, "\n\n>>>>>>>>>>>>>>>>>>>>>>>>>>> OAIEMU initialization done <<<<<<<<<<<<<<<<<<<<<<<<<<\n\n");

#if defined(ENABLE_ITTI)
1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043
# if defined(ENABLE_USE_MME)
  if (itti_create_task(TASK_SCTP, sctp_eNB_task, NULL) < 0) {
      LOG_E(EMU, "Create task failed");
      LOG_D(EMU, "Initializing SCTP task interface: FAILED\n");
      return -1;
  }
  if (itti_create_task(TASK_S1AP, s1ap_eNB_task, NULL) < 0) {
      LOG_E(EMU, "Create task failed");
      LOG_D(EMU, "Initializing S1AP task interface: FAILED\n");
      return -1;
  }
# endif

1044
  if (itti_create_task(TASK_L2L1, l2l1_task, NULL) < 0) {
1045 1046 1047 1048 1049 1050 1051 1052 1053
    LOG_E(EMU, "Create task failed");
    LOG_D(EMU, "Initializing L2L1 task interface: FAILED\n");
    return -1;
  }

  // Handle signals until all tasks are terminated
  itti_wait_tasks_end();
#else
  l2l1_task (NULL);
1054 1055
#endif

1056 1057
  t = clock () - t;
  printf ("rrc Duration of the simulation: %f seconds\n", ((float) t) / CLOCKS_PER_SEC);
1058 1059

  //  fclose(SINRpost);
1060
  LOG_I(EMU, ">>>>>>>>>>>>>>>>>>>>>>>>>>> OAIEMU Ending <<<<<<<<<<<<<<<<<<<<<<<<<<\n\n");
1061

1062
  free (otg_pdcp_buffer);
1063 1064 1065

#ifdef SMBV
  if (config_smbv) {
1066
    smbv_send_config (smbv_fname,smbv_ip);
1067 1068 1069 1070
  }
#endif

  //Perform KPI measurements
1071 1072
  if (oai_emulation.info.otg_enabled == 1)
    kpi_gen ();
1073 1074 1075 1076 1077 1078 1079

  // relase all rx state
  if (ethernet_flag == 1) {
    emu_transport_release ();
  }

#ifdef PROC
1080
  if (abstraction_flag == 0 && Channel_Flag==0 && Process_Flag==0)
1081
#else
1082
  if (abstraction_flag == 0)
1083
#endif
1084
      {
1085
    /*
1086 1087 1088 1089 1090 1091 1092 1093
     #ifdef IFFT_FPGA
     free(txdataF2[0]);
     free(txdataF2[1]);
     free(txdataF2);
     free(txdata[0]);
     free(txdata[1]);
     free(txdata);
     #endif
1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112
     */

    for (i = 0; i < 2; i++) {
      free (s_re[i]);
      free (s_im[i]);
      free (r_re[i]);
      free (r_im[i]);
    }
    free (s_re);
    free (s_im);
    free (r_re);
    free (r_im);

    lte_sync_time_free ();
  }
  //  pthread_join(sigth, NULL);

  // added for PHY abstraction
  if (oai_emulation.info.ocm_enabled == 1) {
1113 1114 1115
    for (eNB_id = 0; eNB_id < NUMBER_OF_eNB_MAX; eNB_id++)
      free (enb_data[eNB_id]);

1116
    for (UE_id = 0; UE_id < NUMBER_OF_UE_MAX; UE_id++)
1117
      free (ue_data[UE_id]);
1118 1119 1120
  } //End of PHY abstraction changes

#ifdef OPENAIR2
1121
  mac_top_cleanup ();
1122
#endif 
1123

1124
#ifdef PRINT_STATS
1125
  for (UE_id=0;UE_id<NB_UE_INST;UE_id++) {
1126 1127
    if (UE_stats[UE_id])
    fclose (UE_stats[UE_id]);
1128
    if(UE_stats_th[UE_id])
1129
    fclose (UE_stats_th[UE_id]);
1130
  }
1131 1132
  for (eNB_id=0;eNB_id<NB_eNB_INST;eNB_id++) {
    if (eNB_stats[eNB_id])
1133
    fclose (eNB_stats[eNB_id]);
1134
  }
1135
  if (eNB_avg_thr)
1136
  fclose (eNB_avg_thr);
1137
  if (eNB_l2_stats)
1138 1139
  fclose (eNB_l2_stats);

1140 1141 1142
#endif

  // stop OMG
1143
  stop_mobility_generator (oai_emulation.info.omg_model_ue); //omg_param_list.mobility_type
1144 1145
#ifdef OPENAIR2
  if (oai_emulation.info.omv_enabled == 1)
1146
    omv_end (pfd[1], omv_data);
1147
#endif
1148 1149 1150 1151 1152
  if ((oai_emulation.info.ocm_enabled == 1) && (ethernet_flag == 0) && (ShaF != NULL))
    destroyMat (ShaF, map1, map2);

  if ((oai_emulation.info.opt_enabled == 1))
    terminate_opt ();
1153 1154

  if (oai_emulation.info.cli_enabled)
1155
    cli_server_cleanup ();
1156 1157

  //bring oai if down
1158 1159 1160 1161 1162 1163
  terminate ();
  log_thread_finalize ();
  logClean ();
  vcd_signal_dumper_close ();

  return (0);
1164 1165 1166
}

/*
1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189
 static void *sigh(void *arg) {

 int signum;
 sigset_t sigcatch;
 sigemptyset(&sigcatch);
 sigaddset(&sigcatch, SIGHUP);
 sigaddset(&sigcatch, SIGINT);
 sigaddset(&sigcatch, SIGTERM);

 for (;;) {
 sigwait(&sigcatch, &signum);
 switch (signum) {
 case SIGHUP:
 case SIGINT:
 case SIGTERM:
 terminate();
 default:
 break;
 }
 }
 pthread_exit(NULL);
 }
 */
1190 1191 1192 1193

void terminate(void) {
  int i;
  char interfaceName[8];
1194 1195 1196 1197 1198
  for (i = 0; i < NUMBER_OF_eNB_MAX + NUMBER_OF_UE_MAX; i++)
    if (oai_emulation.info.oai_ifup[i] == 1) {
      sprintf (interfaceName, "oai%d", i);
      bringInterfaceUp (interfaceName, 0);
    }
1199 1200
}